Pillow



FIG. 1 is a top view of a pillow showing my new design;

FIG. 2 is a front side view thereof;

FIG. 3 is a rear side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top and front view in perspective thereof.

The broken line illustration in the drawings is not part of the claimed design. 

CLAIM The ornamental design for a pillow, as shown and described. 